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首页> 外文期刊>Breeding science >Effect of change from a determinate to a semi-determinate growth habit on the yield and lodging resistance of soybeans in the northeast region of Japan
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Effect of change from a determinate to a semi-determinate growth habit on the yield and lodging resistance of soybeans in the northeast region of Japan

机译：从A型测定对半测定生长习惯的影响对日本东北地区大豆产量和住院抗性的影响

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摘要

Although an indeterminate growth habit is attractive to develop high-yield soybean varieties with higher number of pods (Glycine max (L). Merr.), lodging in indeterminate varieties remains a problem in Japan. As the semi-determinate varieties have shorter main stem length than the indeterminate varieties, this trait can be useful to improve varieties with high yield and low lodging risk. We introduced the genes Dt1 and Dt2, which regulate stein growth habit, into three determinate varieties by backcrossing and evaluated the resulting effects on yield and lodging tendency under four different growing enviromnents. The yield and lodging degree of the semi-determinate and indeterminate lines were higher and more severe than those of the determinate lines. Despite the lower overall lodging score, the semi-determinate lines had marginally lower overall yield than that of the indeterminate lines. However, the effect of introduction of semi-determinate traits on yield and lodging degree was different in the three backgrounds, with the yield of semi-determinate lines being the highest and the difference in lodging degree between the semi-determinate and determinate lines being under 1.0 in one background. Therefore, semi-determinate growth habit has potential to develop high yielding varieties with low lodging risk.
机译：虽然不确定的生长习惯是具有较高数量的豆荚（甘氨酸MAX（L）的高产大豆品种的吸引力由于半确定品种具有比不确定品种更短的主干长度，这种特性可以有助于改善具有高产和低植物风险的品种。我们介绍了调节斯坦酸生长习性的基因DT1和DT2，通过回程进行三个测定品种，并评估了在四种不同生长环境下对产量和寄生趋势的产生影响。半测定和不确定线的产量和住宿程度较高，比确定线的产量更高，更严重。尽管整个住宿得分较低，但半确定线条总体产量比不确定的线条略低。然而，在三个背景下，引入半确定性性状的效果是不同的，并且半确定线的产量是半确定和确定线的半确定和确定线之间的住宿程度的差异1.0在一个背景中。因此，半确定的生长习惯具有开发高屈服品种的潜力，具有低植物风险。

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